464447221303541 has 4 divisors (see below), whose sum is σ = 530796824346912. Its totient is φ = 398097618260172.

The previous prime is 464447221303531. The next prime is 464447221303547. The reversal of 464447221303541 is 145303122744464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-464447221303541 is a prime.

It is a super-2 number, since 2×464447221303541² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 464447221303541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464447221303547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33174801521675 + ... + 33174801521688.

It is an arithmetic number, because the mean of its divisors is an integer number (132699206086728).

Almost surely, 2^{464447221303541} is an apocalyptic number.

It is an amenable number.

464447221303541 is a deficient number, since it is larger than the sum of its proper divisors (66349603043371).

464447221303541 is an equidigital number, since it uses as much as digits as its factorization.

464447221303541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66349603043370.

The product of its (nonzero) digits is 7741440, while the sum is 50.

The spelling of 464447221303541 in words is "four hundred sixty-four trillion, four hundred forty-seven billion, two hundred twenty-one million, three hundred three thousand, five hundred forty-one".